JUSTIN BIEBER INSTAGRAM PHOTOS COLLECTION

Show off! Justin Bieber reveals his muscular physique as he impresses with a kickflip while skateboarding shirtless in LA. For those who doubted Justin Bieber’s chiselled abs in his famous Calvin Klein advert, prepare to eat your words.

The 21-year-old star impressed as he ditched his shirt and kickflipped his way through an impressive skate session in Santa Monica, California, on Wednesday. The Baby singer decided to work up a sweat midway through some time at a studio – and no doubt got his adoring fans and a few onlookers a little hot and bothered at the same time. Justin Bieber Instagram photo

The pop star used a break from the studio to show off his skate moves on a basketball court that was conveniently located just outside. Even though busy at work on his project, many people felt compelled to come outside and watch as the star pulled a number of successful tricks. Justin Bieber Instagram photo

While the 21-year-old has often been made fun of for his abilities on the board – a few public stacks have not helped – Justin has obviously been practicing. The star accessorised his look with a pair of plain white sneakers and backwards black hat.

Justin Bieber Instagram photo. Skating back and forth across the baseball court, Bieber impressed the growing crowd with a host of tricks including a kickflip, which he almost did not land as his board came dangerously close to hitting the concert as he flipped it. Justin clearly enjoyed himself, posting on Twitter: ‘Today is a good day.’